# 1,4-Dimethylnaphthalene; Amendment to an Exemption From the Requirement of a Tolerance
> **Rule** · Final rule. · Published 2012-11-16 · Effective 2012-11-16 · 77 FR 68692
## Document
- **Document number:** 2012-27809
- **Category:** pesticide
- **Federal Register citation:** 77 FR 68692
- **CFR reference:** 40 CFR 180
- **Publication date:** 2012-11-16
- **Effective date:** 2012-11-16
- **EPA docket:** EPA-HQ-OPP-2011-1029
## Abstract

This regulation amends the existing exemption from the requirement of a tolerance for residues of the plant growth regulator, 1,4-dimethylnaphthalene (1,4-DMN) by expanding the current exemption to include all sprouting root and tuber vegetables (EPA Crop Group 01) and all bulb vegetables (EPA Crop Group 03). On behalf of D-I-1-4, Inc., a division of 1,4Group, Inc., Technology Sciences Group, Inc. (TSG) submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting that EPA amend the existing exemption from the requirement of a tolerance for 1,4-DMN. This regulation eliminates the need to establish a maximum permissible level for residues of 1,4-DMN under the FFDCA.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/11/16/2012-27809/14-dimethylnaphthalene-amendment-to-an-exemption-from-the-requirement-of-a-tolerance)
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